And you can do it in one-group theory or multi-group theory. One-group theory assumes that the neutron energy and everything is going on at one energy and we have to make some adjustments.

你能够在单群理论或这多群理论里，单群理论假设，中子能量和所有的东西，要达到一个能量，我们必须要做出些调整。

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You then can a multi-group either diffusion equation or solve these types of equations and more rigorously.

然后你有一个多群的或者是扩散等式,或者更严厉地解决这些等式。

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And it will also provide you with an understanding of how one might break down the multi-group problem into something that's understandable from a mathematical standpoint.

它也能提供你一个关于，那怎么能将多群的问题分解成，能够从一个数学的角度，能理解的问题。

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